Damnit can't make up my mind. I had a tune on my 2008 5.4L and didn't notice anything. I don't want to waste 400 dollars if I'm not going to notice any power or mpg improvements. I mean 400 dollars is a lot of beer. Lol

 

I put a super chips flashpaq tune on my 03 f150 didn't notice any difference until I took it out when I went to sell the truck, wow it was night and day, the thing felt like a slug , but I had also installed a set of shorty headers, cat back , gotts mod, a full set of msd coils on it, and a shift kit after I had put the tunes in.

 

Did you keep the tuner from the 08?